Fastener-inserting machine



3 SHEETS-SHEET lmm Feb i LE S. A. AND J. C. DOBYNE.

FASTENER |NSERTING MACHINE.

APPLICATION FILED 1AN.3.I9I6.

FASTENER INSERTING MACHINE. APPLICATION mm mm. I915.

1,369,088. Patented Feb. 22,1921. I7, I Hans-sung.

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Patented Feb. 22, 1921.

a suns-sneer as. A. AND 1. c. .DOBYNE, FASTENER INSERTING MACHINE.

APPLICATION FILED JAN. 3. I916.

UNITED, TAT S STEPHEN A. DOBYNE AND JOHN C. DOBYNE, 0F

TION OF MISSOURI.

PATENT OFFICE.

ST. LOUIS, MISSOURI, ASSIGNORS 'IO CHAMPION SHOE MACHINERY COMPANY, OF ST. LOUIS, MISSOURI, A CORPORA- FASTENER-INSER'I'ING MAOI-IIN E.

Specification of Letters Patent.

Patented Feb. 22, 1921.

Application filed January 3, 1916. Serial No. 69,797.

To all whom it may concern Be it known that we, STEPHEN A. DOBYNE and JOHN C. DoBYNn, both citizens of the United States, and residing at St. Louis, in the State of Missouri, have invented a certain new and useful Improvement in Fastener-Inserting Machines, of which the following is a specification.

This invention relates to fastener inserting machines, and more particularly, to ma chines for inserting metallic fasteners.

A fastener inserting machine of the type referred to is usually provided with an awl which forms an opening in the work to receive the fastener, and which also feeds the work. The fastener inserting mechanism proper generally consists of a driver which drives the fastener into the hole formed by the awl. Now it is necessary to stop the machine with the last fastener completely inserted, but the machine must not be per mitted to continue much beyond that point, for, otherwise, the awl. will enter, and, in some cases, spoil the work. As it is necessary to operate quite a number of mechanisms during a single revolution of the drive shaft, and as the awl immediately follows the driver in the cycles of operations, the driver being operated at the end and the awl at the beginning of the cycle, the angular time relation between the driver and awl is very short. In view of this fact, it is necessary, with the machines as now employed, to arrest the drive shaft within a very short angle, otherwise either the fastener will not be completely driven, or the awl will have entered the work and marred the same.

One of the objects of this invention, therefore, is to provide means for controliing the operation of the machine, and more particularly, of the fastener inserting and awl mechanisms, so as to insure the insertion of the last fastener and prevent puncturing of the work by the awl mechanism after the last fastener is inserted.

In the operation of a fastener inserting machine of the metallic type, it is fre quently necessary to change the lengths of the fasteners inserted, this being usually accomplished by a shifting mechanism. It 1s, however, desirable to shift this mechanism during the operation of the machine.

Another object, therefore, is to provide an HDPIOVBCl mechanism whereby the operator may, during the operation of the machine, shift the mechanism so as to change the fasteners to be inserted.

Further objects will appear from the detail description taken in connection with the accompanying drawings, in which:

Figure l is a front elevation of a machine embodying this invention;

F g. 2 is a side elevation;

Fig. 3 is a section on the line 3-3, Fig. 2 I

Fig. Fig. 2;

Fig. 5 is an enlarged section on the line 55, Fig. 2;

Fig; 6 is a section on the line 6-6,

4: is a section on the line 47 4,

Fig. 5;

Fig. 7 is an enlarged section on the line 7-7, Fig. 3, showing the mechanism in cle vation;

Fig. 8 is an enlarged section of Fig. 3; anc

Fig. 9 is a detail rear. elevation, showing the clutch and brake and theircontrolling mechanisms.

Referring .to the accompanying drawings, the mechanism is shown as applied to the machine shown and described in United States Patent No. 1,286,559, granted Dec. 3, 1918, on an application of Stephen A. Dobyne, Serial No. 830,050, filed April 6, 1914:, and in the drawings hereafter referred to similar parts are designated by the same reference characters as in said patent.

Referring, now, to the accompanying drawings, and more particularly in a general way to those parts fully illustrated and described in the patent referred to, 10 designates a column or pillar which has mounted thereon a machine head 11, provided with a driving shaft 12, which driving shaft has mounted thereon a series of cams 13, 14 and 15 for operating different parts of the machine. The machine is also provided with a horn 23, adapted to receive and support the shoe. An awl bar 42 carries an awl 55, which forms fastener receiving openings and also feeds the work. A driver bar 61 carries a driver 60, which operates in a laterally movable throat 72 to drive the fasteners. A fastener stock guide 97 is provided with grooves 98for the fastener stock, which is in the form of strings of connected nails, and an arm 129 carrying a cutter 133 operates to sever the fasteners from the fastener stock.

The fastener stock guide 97 is rigidly mounted on the end of a shaft 96, which passes through a hollow sleeve or shank on the throat, so as to oscillate concentrically with the throat. A spring stop plate 99 is mounted on an arm 100, and this plate bears against the guide 97 to form a stop for the nail strings. A pin 102 is mounted on a projecting arm on the guide, and engages one end of a spring 103, the other end of which is attached at 104 to the machine head.

A clutch 135 of usual construction is operated by a wedge 136 on a clutch shifting rod 137. T he band brake 138 is of the usual form and is pivoted at one end at 146 on the machine head, while its other end is con nected by a link 147 pivotally connected to an arm 148, integral with an arm 139, pivoted at 146 and connected to the clutch rod 137. The arm 139 has also rigidly connected therewith an arm 140 provided with a cam roll bearing on a cam 141 on the cam wheel 16. The operation of this clutch and brake mechanism is well known. When the clutch rod 137 is raised the arm 140 is first thrown outwardly and the brake released, and the wedge 136 thereafter throws in the clutch. If the clutch treadle is now released, the cam roll on the arm 140 will bear on the high part of the cam and permit the machine to continue in operation until the low part of the cam is reached. The cam roll will then drop on this low part of the cam and cause the clutch rod spring (not shown) to apply the brake.

Referring, now, more particularly to Figs. 5 and 6, 13 designates the driver camwheel which is provided with a cam groove 64 engaging a cam roll 63 on the driver bar 62. This driver cam is not, however, in this case, fixed to the drive shaft 12, but is loosely mounted thereon between a collar 200 and a flanged disk 201, pinned to the shaft. A spring 202 is connected, at one end, to a pin 203 on the flanged disk, and, at its other end, to a pin 204 on the cam wheel 13. A lug 205 on the disk 201 is normally held in engagement with the pin 204 by the spring 202. The operation of this mechanism is as follows: During the normal. operation of the machine, and after the clutch is released, the disk 201 traveling in the direction of the arrow noted thereon in Figs. 1 and 5 will,

Will, of course, return this cam wheel in its original relation with res acct to the disk 201 and the other parts 0 the mechanism.

It will, therefore, be seen that, with this construction, it is possible to arrest the drive shaft prior to the completion of the insertion of the last fastener, as the cam disk will continue under momentum after stopping of the shaft to drive the last fastener. In the particular machine described, it has been possible to arrest the shaft 25 before the complete insertion of the last fastener, in other words, the driver cam will, through its momentum, complete the insertion of the fastener after the drive shaft has been arrested; it will then, of course, again retract from the work. Now this means that, in this machine, by varying the relation between the fastener inserting mechanism and the awl mechanism when the machine has stopped, and by varying the range of movement of the fastener inserting mechanism in excess of the drive shaft, the shaft can be stopped over a considerable period prior to the point where the awl comes down, and

a still the complete insertion of the last fastener is insured. It is, therefore, not necessary to use any quick acting brake or stop, which is liable to wear out the machine, but

a gradually applying brake may be used in view of the fact that the drive shaft may be stopped at any point over an angleof con siderable dimensions.

Referring, now, more particularly to Figs. 1, 2,3, 4, 7 and 8, 207 designates a fork which is pivoted at 208 on the bracket 209, and has arms 210. This fork engages the spool 106 fixed to the shaft 96. The cam wheel 15 has a cam groove 211 which eugages a cam roll 212 on an arm 213 pivoted at 214 on the machine head 11, and connected by a link215 with a lever 216 piv oted at 217 on the machine head, and carrying at its lower end a head 218 provided with spring pressed plungers 2 19 arranged opposite the arms 210. A. shiftable member comprising arms 220 is pivoted on the hub 221 of the forked lever 207, so that either of the arms 220 may be moved between the corresponding arms 210 and plungers 219. In order to shift these arms, a bell crank lever pivoted at 222 on the hub 221 has a hollow arm 223 which has a link 224 depressible yieldingly therein, and is connected by a link 225 with the pivot of the arms 220, there being a lost motion between the link 225 and thearms, formed by shoulders 226 and pins 227. The bell crank lever has an arm 228 extending to the front of the ma chine, and each of the arms 210 has a stop 229.

The spool 106 has a shoulder 230 adapted to be engaged by either one of the notches 231 on the head 232 of a spring pressed plunger mounted in a casing or cylinder 233 fixed to the machine head; A spring 120 is also mounted between the spool and the machine head.

Assuming that the fastener stock guide has been shifted to the position shown in Fig. 3, and that the right arm 220, Fig. 7, has been shifted to the position shown, that is, between the arm 210 and the plunger 219, upon operation of the shaft 12 the cam 211 will swing the lever 216, thereby moving the head 218 to the left, Fig. 4:, and by the engagement of the plunger 219 with the arm 220, shift the upper arm 210, Fig. 3, and the fork 207 in a contra clockwise direction (Fig. 3) to throw the other strand of fastener stock into alinement with the driver passage, the same being located by the engagement of the rib 230 with the other recess 231. If it should happen at this time that the plunger 219 is in the opposite position from that shown, then, by operation of the arm 228, the arm 220 will engage this plunger and stop, but the arm 223 will con tinue its movement, as the spring therein will yield, and as the lost motion between the link 224 and the pivot of the arms 220 will cause the joint between the link and the arm to be to the right, as shown in Fig. 7, and hold the parts in position under yieldingtension, when, upon outward movement of the head 218, the arm will snap into position between the plunger and the arm 210. It will be understood that the fastener stock guide may be shifted manually by moving the arm 228 either to the right or left, Fig. 3.

It is obvious that various changes may be made in the details of construction without departing from the spirit of this invention. It is, therefore, to be understood that this invention is not to be limited to the specific construction shown and described.

Having thus described the invention, What is claimed is:

1. In a fastener inserting machine, a main drive shaft, fastener inserting mechanism, controlling means for arresting said drive shaft, and means constructed and arranged to cause said fastener inserting mechanism to continue in operation after said drive shaft is arrested, for the purpose set forth.

2. In a fastener inserting machine, a

main drive shaft, fastener inserting mech anism, and means for controlling the operation of said shaft and said mechanism, constructed and arranged to cause said mechanism to continue in its movement within a predetermined period after said shaft is stopped.

3. In a fastener inserting machine, a main drive shaft, fastener inserting mechanism, and means for controlling, the operation of said shaft and said mechanism constructed and arranged to cause said mechanism to insure complete insertion of the last fastener after said shaft is stopped.

4. In a fastener inserting machine, a main drive shaft, fastener inserting mechanism, and means for controlling the operation of said shaft and said mechanism constructed and arranged to cause said mechanism to continue in its movement under its momentum and within a predetermined period after said shaft is stopped.

5. In a fastener inserting machine, a main drive shaft, fastener inserting mechanism, a driving member on said shaft for operating said mechanism, and means for controlling the operation of said shaft and said member constructed and arranged to cause said member to continue in its movement after said shaft is stopped.

6. In a fastener inserting machine, a main drive shaft, fastener inserting mechanism, a driving member on said shaft for operatin said mechanism, and means for controlling the operation of said shaft and said member constructed and arranged to cause said member to operate said mecha-- nism to insure complete insertion of the last fastener after said shaft is stopped.

7. In a fastener inserting machine, a main drive shaft, fastener inserting mechanism, a driving member on said shaft for operating said mechanism, and means for controlling the operation of said shaft and said member constructed and arranged to cause said member under its momentum to operate said mechanism to insure complete insertion of the last fastener after said shaft is stopped.

8. In a fastener inserting machine, a

if main drive shaft, fastener inserting mechanism, controlling means including a clutch I and a brake adapted to arrest said drive shaft, and means constructed and arranged to cause said fastener inserting mechanism to continue in operation after said drive shaft is arrested, for the purpose set forth.

9. In a fastener inserting machine, a main drive shaft, fastener inserting mechanism, controlling means including a clutch and a brake adapted to arrest said drive shaft, and means constructed and arranged to cause said mechanism to insert the last fastener after the application of said brake. 10. In a fastener inserting machine, a

main drive shaft, fastener inserting mechanism,'controlling means including a clutch and a brake adapted to arrest said drive shaft, a driving member on said shaft for operating said mechanism, and means for causing said member to operate said mechanism under momentum to insert the last fastener after the application of said brake.

11. In a fastener inserting machine, a maindrive shaft, fastener inserting mechanism, aWl mechanism, controlling means for arresting said drive shaft, and means constructed and arranged to cause said fastener inserting mechanism to continue in operation after said drive shaft is arrested, for the purpose set forth.

12. In a fastener inserting machine, a main drive shaft, fastener inserting mechanism, awtmechanism, controlling means for arresting said drive shaft, and means for controlling the operation of said fastener inserting and and mechanisms constructed and arranged to insure the insertion of the last fastener and prevent puncturing of the Work by the arvl mechanism after the last fastener is inserted.

13. In a fastener inserting machine, a main drive shaft, fastener inserting mechanism, and mechanism, controlling means for arresting said drive shaft, and means for causing a movement of said fastener inserting mechanism independent of said and mechanism, constructed and arranged to insure the insertion of the last fastener and prevent puncturing of the Work by the and mechanism after the last fastener is inserted.

14. In a fastener inserting machine, a main drive shaft, fastener inserting mechanism, and mechanism, controlling means for arresting said drive shaft, and a driving connection between said fastener inserting mechanism and said drive shaft constructed to permit said fastener inserting mechanism to have a range of move ment independent of said awl mechanism.

15. In a fastener inserting machine, a main drive shaft, fastener inserting mechanism, awl mechanism, controlling means for arresting said drive shaft, and a driving connection between said fastener inserting mechanism and said drive shaft constructed to permit said fastener inserting mechanism to have a range of move ment in excess of that of the drive shaft.

16. In a fastener inserting machine, a main drive shaft, fastener inserting mechanism, and mechanism, controlling means for arresting said drive shaft, and a driving connection between said fastener inserting mechanism and said drive shaft adapted to continue in operation after stopping of the shaft and constructed and arranged to insure the insertion of the last fastener and prevent puncturing of the Work by the and mechanism after the last fastener is inserted.

17. In a fastener inserting machine, a main drive shaft, fastener inserting mechanism, awl mechanism, controlling means for arresting said drive shaft and aWl mechanism prior to final insertion of the last fastener, and means for controlling the operation of said fastener inserting mechanism constructed and arranged to cause said mechanism to thereafter continue in operation for completing the insertion of the last fastener and finally retract from the Work.

18. In a fastener inserting machine, a main drive shaft, fastener inserting mechanism, and mechanism, controlling means for arresting said drive shaft, and means for controlling the operation of said fastener inserting mechanism constructed and ar ranged to cause said mechanism to insert the last fastener after said drive shaft is stopped and then retract from the Work.

19. In a fastener inserting machine, a

main drive shaft, fastener inserting mechanism, awl mechanism, controlling means for arresting said drive shaft, and means constructed and arranged to permit the normal relation between said fastener inserting and and mechanisms to be varied when the machine is stopped.

20,111 a fastener inserting machine, a main drive shaft, fastener inserting mechanism, awl'mechanism, controlling means for arresting said drive shaft, and means permitting variation of the normal relation between said fastener inserting and awl mechanisms constructed and arranged to insure the insertion of the last fastener and prevent puncturing of the Work by the and mechanism after the last fastener is inserted.

21. In a fastener inserting machine, a main drive shaft, fastener inserting mechanism, awl mechanism, controlling means for arresting said drive shaft and awl mechanism immediately following final puncturing of the Work by said avvl mechanism, and means for controlling the operation of said fastener inserting mechanism constructed and arranged to insure final insertion of the last fastener after said shaft is stopped.

22. In a fastener inserting machine. a main drive shaft, fastener inserting mechanism, awl mechanism, controlling means for arresting said drive shaft and awl mechanism immediately following final puncturing of the Work by said and mechanism, and means for controlling the operation of said fastener inserting mechanism, constructed and arranged to cause said fastener inserting mechanism to continue in its movement after said drive shaft is stopped.

23. In a fastener inserting machine, a main drive shaft, fastener inserting mechanism, avvl mechanism, controlling means for arresting said drive shaft prior to the puncturing of the work by said awl mechanism, and means for controlling the operation of said fastener inserting mechanism constructed and arranged to cause said fastener insertingmechanism to continue in its movement after said drive shaft is stopped and thereafter retract from the work.

24. In a fastener inserting machine, a main drive shaft, fastener inserting mechanism, a multiple fastener stock guide, a fork constructed and arranged for operation to.

shift said guide, an actuating plunger connected for operation from said shaft, and a controlling member, movable, at will, to positions to and from between said plunger and fork to render said plunger operative on said fork.

25. In a fastener inserting machine, a drive shaft, fastener inserting mechanism, a movable fastener stock guide, a fork constructed and'arranged for operation to shift said guide, an actuating plunger connected for operation from said shaft, and a controlling member movable, at will, from a position out of to a position between said plunger and said fork to form a connection through which the plunger operates said fork to move the guide.

26. In a fastener inserting machine, a drive shaft, fastener inserting mechanism, a movable fastener stock guide, a fork constructed and arranged for operation to shift said guide, a yieldable actuating plunger connected for operation from said shaft, and a controlling member movable, at will, from a position out of to a position between said plunger and said fork to form a connection through which the plunger operates said fork to move the guide.

27. In a fastener inserting machine, a main drive shaft, fastener inserting mechanism, a multiple fastener stock guide, means for shifting said guide, means operated from said drive shaft for actuating said shifting means, and controlling means adapted to either render said actuating means operative on said shifting means or directly operate said shifting means.

28. In a fastener inserting machine, a main drive shaft, fastener inserting mechanism, a multiple fastener stock guide, means for shifting said guide, an actuator operated from said drive shaft, and a controlling member movable from a position out of to ling member movable yieldingly to position between said actuator and said shifting means to cause the actuator to shift said guide.

80. In a fastener inserting machine, a main drive shaft, fastener inserting mechanism, a multiple fastener stock guide, means for shifting said guide, an actuator operated from said drive shaft, and controlling means connected to operate said shifting means either directly or through said actuator.

31. In a fastener inserting machine, a main drive shaft, fastener inserting mechanism, a multiple fastener stock guide, means for shifting said guide, an actuator operated from said drive shaft, a controlling member connected to manually operate said shifting means, and means operated by said member for rendering said actuator operative on said shifting means.

32. In a fastener inserting machine, a main drive shaft, fastener inserting mechanism, a multiple fastener stock guide, means for shifting said guide, an actuator operated from said drive shaft, a controlling member connected to operate said shifting .means, and means operated by said member and movable between said actuator and said shifting means to cause the actuator to shift said guide.

In testimony whereof we affix our signatures this 3d day of December, 1915.

STEPHEN A. DOBYNE. JOHN C. DOBYNE. 

